2 . 观察句子完成填空
1.He has been watching television all day.
2.I am tired. I have been painting the living room all the morning.
3.We have been discussing the matter several times this year.
4.His eyes ache. He has been sitting in front of the computer all the afternoon.
5.They have been building the bridge for two months.
6.He has not been working since he was fired three months ago.
1. 现在完成进行时态的构成：肯定形式：_________________ 。否定形式：_________________。
2. 现在完成进行时表示动作开始于过去，并__________到现在，动作可能__________，也可能__________。

3 . 坐在窗边我感觉很不好，尤其是当我们飞的很高的时候。（汉译英）
________________________________________________

4 . Life, like a musical symphony with its highs and lows, brings students bittersweet moments, like ________ a major exam, giving a presentation, or first-time boarding.

A．reciting

B．observing

C．sitting

D．putting

6 . 他双手抱着头，小心翼翼地坐着。(汉译英)

7 . 教室里的每个人都在愉快地聊天，而简却一个人坐在那里不知所措。
Everyone in the classroom ________________, at a loss.(对比修辞法)

8 . ________________ with a magazine in his hand.   
窗户边坐着一个年轻人，手里拿着一本杂志。

9 . ________, seeing the people back and forth.
那时，她会坐在门口看着人来人往。